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Modérateur: Dunandan
Mark Chopper a écrit:Je l'ai déjà dit, mais c'est inévitable. Quand je vois que le rayon téléphone ou cafetière de la Fnac de Reims est plus grand que celui-des blu-ray, ça me fait pitié.
The independent Shout! Factory also has announced its intent to release 4K Ultra HD Blu-ray Discs, with an initial slate drawn from IMAX theatrical releases.
Shout! Factory titles include Journey to Space (narrated by Patrick Stewart), Humpback Whales (narrated by Ewan McGregor), Flight of the Butterflies, Rocky Mountain Express, Wonders of the Arctic (narrated by Victor Garber) and The Last Reef: Cities Beneath the Sea.
Space and Whales will be the first to come to market, in late spring or early summer.
However, all of these positives come at a price: noise. As Shannon mentioned in his Blu-ray review, this production combined numerous sources into a 2K DI master. According to Fox, this Ultra HD Blu-ray received a new color grading, and represents a combination of upscaled 2K material and downrezzed 5K content. I suspect upscaling is an issue with this release.
I honestly didn't expect much improvement in perceived resolution, given that this movie was photographed and finished in 2K, and then upscaled for this release.
Here’s the dirty secret about the industry’s move to 4k or higher displays: The majority of modern movies are either photographed digitally at 2k resolution or have a 2k Digital Intermediate. While it’s true that some movies are indeed starting to be photographed with 4k cameras (and movies shot on film may get scanned at 4k resolution), most of them still get downgraded to 2k for the post-production workflow. The higher pixel resolution of 4k requires a big increase in bandwidth resources that most post houses can’t handle. And, ultimately, most viewers can’t tell the difference between 2k and 4k anyway.
Think I’m exaggerating? Let’s look at some of the launch titles that have been announced for early release on the Ultra HD Blu-ray format this spring.
Here are the titles that Warner Home Video has announced:
‘The Lego Movie’ – Animated on a 2k DI
‘Mad Max: Fury Road’ – Shot in 2k, with a 2k DI
‘Man of Steel’ – Shot on 35mm, with a 2k DI
‘Pacific Rim’ – Shot in 5k, but only a 2k DI
‘Pan’ – Shot in 3k, with a 2k DI
‘San Andreas’ – Shot in 3k, DI is not listed but probably 2k
Yes, every single film that Warner plans to release on the 4k Ultra HD format is a 2k movie.
The 20th Century Fox release titles are only marginally better:
‘Exodus: Gods and Kings’ – Shot in 5k, with a 2k DI
‘Fantastic Four’ – Shot in 2k, with a 2k DI
‘Kingsman: The Secret Service’ – Shot mostly in 2k, with a 2k DI
‘Life of Pi’ – Shot in 2k, with a 2k DI
‘The Martian’ – Shot in 5k, with a 2k DI
‘The Maze Runner’ – Shot mostly in 2k mixed with some 5k, with a 4k DI
‘Wild’ – Shot in 2k, with a 2k DI
‘X-Men: Days of Future Past’ – Shot in 2k, with a 2k DI
That’s 13 launch titles from two major studios, and only a single movie was actually produced at 4k resolution (‘The Maze Runner’) – and even that one was mostly photographed in 2k. And these aren’t just old movies made before 4k was possible. Even major big-budget tentpole blockbusters from the past year were made in 2k. Many more will continue to be made in 2k this year and going forward too.
Only Sony appears to have a genuine commitment to making movies in 4k. Here are that studio’s Ultra HD Blu-ray launch titles:
‘The Amazing Spider-Man 2’ – Shot on 35mm, with a 4k DI
‘Chappie’ – Shot in 5k, with a 4k DI
‘Hancock’ – Shot on 35mm, with a 4k DI
‘Pineapple Express’ – Shot on 35mm, with a 2k DI
‘Salt’ – Shot on 35mm, with a 4k DI
‘The Smurfs 2’ – Shot in 4k, with a 4k DI
One area of concern was how well this movie would transfer over to the higher resolution since it was not originally shot in native 4K. The filmmakers used the Arri Alexa XT Plus, which according to manufactures shoots natively at 3.2K at Rec.709, and mastered into a 2K DI. It's unknown if Fox went back to the original elements for this new release or simply upscaled from the DI and whether they performed a new color grade.
One area of concern was how well this movie would transfer to the 4K resolution since it was originally shot in native 5K thanks to the Red Epic Dragon camera system, which according to manufactures is capable of 6K while shooting natively in DCI-P3. However, the raw information was later mastered in a 2K digital intermediate, and I suspect, based on my viewing experience, that this transfer is likely an upconvert from the DI with new color grading, not a wholly new remaster from the original source.
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